<div>
    <button id="open_button" class="palm-button">
        <span>打开</span>
    </button>

    <button id="saveas_button" class="palm-button">
        <span>另存为</span>
    </button>

    <button id="cancel_button" class="palm-button">
        <span>取消</span>
    </button>
</div>
